glGetPolygonStipple
[New
- Windows 95, OEM Service Release 2]
The glGetPolygonStipple
function returns the polygon stipple pattern.
void glGetPolygonStipple(
|
GLubyte * mask |
|
|
); |
|
Parameters
mask
Returns the
stipple pattern.
Remarks
The glGetPolygonStipple
function returns to mask a 32x32 polygon stipple pattern. The pattern is
packed into memory as if glReadPixels with both height and width
of 32, type of GL_BITMAP, and format of GL_COLOR_INDEX were
called, and the stipple pattern were stored in an internal 32x32 color-index
buffer. Unlike glReadPixels, however, pixel-transfer operations (shift,
offset, and pixel map) are not applied to the returned stipple image.
If an error is
generated, no change is made to the contents of mask.
Error Codes
The following
are the error codes generated and their conditions.
|
Error
Code |
Condition |
|
GL_INVALID_OPERATION
|
glGetPolygonStipple was called between a call to glBegin and the
corresponding call to glEnd. |
See Also